Note: 2-pin plug Typical capacity 2550mAh, rated 2500mAh, This item is a wearable part. Per manufacturer, normal wear and tear of wearable parts, which require regular maintenance and/or replacement to ensure the proper functioning of your unit, are not covered by this warranty. For Return and Refund, please refer to Amazon’s Return and Refund policy. 14.4V 2550mA 36Wh Li-ion Cylindrical Rechargeable Battery RVBT850 for ION IQ AI Robot Vacuum, 2-pin Black